Markdown 1.2 Extension not properly installed

Failed to execute the [velocity] macro. Cause: [Could not initialize class org.xwiki.contrib.rendering.markdown.markdown12.internal.DefaultMarkdownConfiguration]. Click on this message for details.

org.xwiki.rendering.macro.MacroExecutionException: Failed to evaluate Velocity Macro for content [\{{html wiki="false" clean="false"}}
 #if ("$!value" == '')
 #set ($value = $xwiki.getDefaultDocumentSyntax())
 #end
 
 #set ($configuredSyntaxes = $services.rendering.getConfiguredSyntaxes())
 #foreach($syntax in $configuredSyntaxes)

$syntax.toString() #end \{{/html}}]
 at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:139)
 at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:52)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.evaluateBlock(AbstractScriptMacro.java:286)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:182)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:58)
 at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:297)
 at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183)
 at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:101)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:263)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:133)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:58)
 at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96)
 at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:123)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:52)
 at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68)
 at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42)
 at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:1207)
 at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1373)
 at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1327)
 at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1312)
 at com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:1268)
 at com.xpn.xwiki.objects.classes.PropertyClass.lambda$renderContentInContext$0(PropertyClass.java:369)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at com.xpn.xwiki.objects.classes.PropertyClass.renderContentInContext(PropertyClass.java:369)
 at com.xpn.xwiki.objects.classes.PropertyClass.displayCustom(PropertyClass.java:316)
 at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:3354)
 at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:3308)
 at com.xpn.xwiki.doc.XWikiDocument.display(XWikiDocument.java:3257)
 at com.xpn.xwiki.api.Document.display(Document.java:1669)
 at sun.reflect.GeneratedMethodAccessor512.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
 at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
 at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
 at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:216)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:311)
 at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:230)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:420)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:420)
 at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:207)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
 at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:358)
 at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:131)
 at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:52)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.evaluateBlock(AbstractScriptMacro.java:286)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:182)
 at org.xwiki.rendering.macro.script.AbstractScriptMacro.execute(AbstractScriptMacro.java:58)
 at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:297)
 at org.xwiki.rendering.internal.transformation.DefaultRenderingContext.transformInContext(DefaultRenderingContext.java:183)
 at org.xwiki.rendering.internal.transformation.DefaultTransformationManager.performTransformations(DefaultTransformationManager.java:101)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:263)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:133)
 at org.xwiki.display.internal.DocumentContentDisplayer.display(DocumentContentDisplayer.java:58)
 at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:96)
 at org.xwiki.display.internal.DefaultDocumentDisplayer.display(DefaultDocumentDisplayer.java:39)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:245)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.applySheet(SheetDocumentDisplayer.java:225)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.maybeDisplayWithSheet(SheetDocumentDisplayer.java:180)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:111)
 at org.xwiki.sheet.internal.SheetDocumentDisplayer.display(SheetDocumentDisplayer.java:52)
 at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:68)
 at org.xwiki.display.internal.ConfiguredDocumentDisplayer.display(ConfiguredDocumentDisplayer.java:42)
 at com.xpn.xwiki.script.display.DisplayScriptService.document(DisplayScriptService.java:143)
 at com.xpn.xwiki.script.display.DisplayScriptService.content(DisplayScriptService.java:206)
 at com.xpn.xwiki.script.display.DisplayScriptService.content(DisplayScriptService.java:165)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
 at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:369)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:87)
 at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:72)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
 at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:106)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
 at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:358)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.evaluateContent(InternalTemplateManager.java:874)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:750)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.lambda$renderFromSkin$0(InternalTemplateManager.java:725)
 at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:724)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:703)
 at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:689)
 at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
 at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2351)
 at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:179)
 at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:491)
 at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:212)
 at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
 at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
 at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
 at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
 at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
 at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:860)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1650)
 at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:112)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
 at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:109)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
 at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
 at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
 at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1637)
 at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:132)
 at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1629)
 at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)
 at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
 at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
 at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
 at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)
 at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
 at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
 at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
 at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
 at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
 at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
 at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
 at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
 at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
 at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)
 at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
 at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
 at org.eclipse.jetty.server.Server.handle(Server.java:530)
 at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:347)
 at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:256)
 at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
 at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
 at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
 at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
 at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
 at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
 at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)
 at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
 at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
 at java.lang.Thread.run(Unknown Source) Caused by: org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with id [xwiki:XWiki.XWikiPreferences]
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:227)
 at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:358)
 at org.xwiki.rendering.internal.macro.velocity.VelocityMacro.evaluateString(VelocityMacro.java:131)
 ... 161 more
 Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getConfiguredSyntaxes' in class org.xwiki.rendering.script.RenderingScriptService threw exception java.lang.RuntimeException: Failed to lookup parsers
 at 321:xwiki:XWiki.XWikiPreferences[line 6, column 49]
 at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:243)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:187)
 at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:280)
 at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:567)
 at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:71)
 at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:142)
 at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:342)
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluateInternal(DefaultVelocityEngine.java:259)
 at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:222)
 ... 163 more
 Caused by: java.lang.RuntimeException: Failed to lookup parsers
 at org.xwiki.rendering.internal.configuration.DefaultExtendedRenderingConfiguration.getAvailableParserSyntaxes(DefaultExtendedRenderingConfiguration.java:193)
 at org.xwiki.rendering.internal.configuration.DefaultExtendedRenderingConfiguration.computeDisabledSyntaxes(DefaultExtendedRenderingConfiguration.java:173)
 at org.xwiki.rendering.internal.configuration.DefaultExtendedRenderingConfiguration.getDisabledSyntaxes(DefaultExtendedRenderingConfiguration.java:117)
 at org.xwiki.rendering.internal.configuration.DefaultExtendedRenderingConfiguration.getConfiguredSyntaxes(DefaultExtendedRenderingConfiguration.java:134)
 at org.xwiki.rendering.script.RenderingScriptService.getConfiguredSyntaxes(RenderingScriptService.java:246)
 at sun.reflect.GeneratedMethodAccessor1048.invoke(Unknown Source)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
 at java.lang.reflect.Method.invoke(Unknown Source)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:395)
 at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:384)
 at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:173)
 ... 170 more
 Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component with type [interface org.xwiki.rendering.parser.Parser] and hint [markdown/1.2]
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:245)
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:253)
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceList(EmbeddableComponentManager.java:225)
 at org.xwiki.component.internal.multi.DelegateComponentManager.getInstanceList(DelegateComponentManager.java:89)
 at org.xwiki.component.internal.multi.DelegateComponentManager.getInstanceList(DelegateComponentManager.java:89)
 at org.xwiki.component.internal.multi.DelegateComponentManager.getInstanceList(DelegateComponentManager.java:89)
 at org.xwiki.component.internal.multi.DelegateComponentManager.getInstanceList(DelegateComponentManager.java:89)
 at org.xwiki.component.internal.multi.DelegateComponentManager.getInstanceList(DelegateComponentManager.java:89)
 at org.xwiki.rendering.internal.configuration.DefaultExtendedRenderingConfiguration.getAvailableParserSyntaxes(DefaultExtendedRenderingConfiguration.java:188)
 ... 180 more
 Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [org.xwiki.contrib.rendering.markdown.markdown12.internal.parser.Markdown12StreamParser] identified by type [interface org.xwiki.rendering.parser.StreamParser] and hint [markdown/1.2]
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:204)
 at org.xwiki.component.embed.EmbeddableComponentManager.getDependencyInstance(EmbeddableComponentManager.java:406)
 at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:355)
 at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:451)
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstanceMap(EmbeddableComponentManager.java:242)
 ... 188 more
 Caused by: org.xwiki.component.manager.ComponentLookupException: Failed to lookup component [org.xwiki.contrib.rendering.markdown.markdown12.internal.DefaultMarkdownConfiguration] identified by type [interface org.xwiki.contrib.rendering.markdown.markdown12.MarkdownConfiguration] and hint [default]
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:204)
 at org.xwiki.component.embed.EmbeddableComponentManager.getDependencyInstance(EmbeddableComponentManager.java:406)
 at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:355)
 at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:451)
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:201)
 ... 192 more
 Caused by: java.lang.NoClassDefFoundError: Could not initialize class org.xwiki.contrib.rendering.markdown.markdown12.internal.DefaultMarkdownConfiguration
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
 at java.lang.reflect.Constructor.newInstance(Unknown Source)
 at java.lang.Class.newInstance(Unknown Source)
 at org.xwiki.component.embed.EmbeddableComponentManager.createInstance(EmbeddableComponentManager.java:347)
 at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:451)
 at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:201)
 ... 196 more